Volume 20 (2002) |
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Abstract |
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Palaeoecology
of basins of organic sediment accumulation in the Reserve Dury
Grzegorz
Kowalewski, Krystyna Milecka Abstract The
Reserve Dury, Tuchola Pinewoods, Poland, includes five depressions with
no outflow filled up with biogenic sediments. They undergo
terrestrialization processes to a high degree. In four of the basins
there are still some open water areas surrounded by floating mire with
raised and transitional bog plants. For the needs of protection service
officers some palynological and geological research were carried out.
All the geological cores were described in detail following the
Troels-Smith system. The deepest core Dury I was selected for pollen
analysis. Ten Local Pollen Assemblage Zones (L PAZ) show the history of
regional and local plant communities. On the basis of two air
photographs, modern dynamics of floating mire in four basins were
evaluated. The results allow us to correlate the geological layers, to
describe the Late Glacial and Holocene succession of plant cover at
Dury I site, and to show the stages of filling-in of basins with
lacustrine sediments and peat.
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Editors |
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